Textile spool



R. ATWOOD TEXTILE SPOOL Oct. 3, 1944.

Filed June 2, 1945 INVENTOR. /An/.s'a/v Hna/aaa Patented Oct. 3, 1944TEXTILE SPOOL Rawson Atwood, Garden City, N. Y., assignor to DecoratedMetal Manufacturing Company,

Inc., Brooklyn, N. Y.,

a corporation of New York Application June 2, 1943, Serial No. 489,320

8 Claims.

This invention reates to improvements in textile spools and moreparticularly in Winding tubes or pirns.

It is an object of the invention to provide an improved drive endconstruction for a flangeless pi-rn or winding tube.

A further object of the invention is to provide an improved drive endconstruction in conjunction with a tubular pirn or windingv tube havinga relatively thin wall.

A still further object of the invention is to provide an improved driveend construction in conjunction with suitable reinforcing structure forthe tube barrel.

Another object of the invention is to provide an improved winding endconstruction for such a tube.

With the foregoing objects and others which will appear in the followingfull description in mind, the invention consists in the combinations andarrangements of parts and details of construction which Will now rst befully described in connection with the accompanying drawing and thenmore particularly pointed out in the appended claims.

In the drawing:

Figure 1 is a central longitudinal section of a winding tube embodyingthe invention inpreferred form and showing the parts in an intermediatestage of assembly;

Figure 2 is a side View of a completed winding tube, with partsprogressively broken away to show the interior structure at the ends incentral longitudinal section;

Figure 3 is a top View of the tube of Figure 2;

Figures 4 and 5 are transverse sections taken respectively on the lines4--v-4 and 5-5 of Figure 2;

Figure 6 is a lower end view of the tube of Figure 2;

Figure 7 is a central longitudinal section of the lower part of the tubeof Figure 2 and is taken on the line 1-1 of Figure 2; and

Figure 8 is a view showing a modified upper or Winding end construction.

Referring now to Figures 1 and 2, the winding tube comprises the outerbarrel I, preferably of pasteboard, within which is a reinforcementassembly including an outer split metal tube 2 and an inner split metaltube 3. These metal tubes are preferably arranged with the splits facingoppositely so as to preserve dynamic balance. The tubes 2 and 3 areforced outwardly against the inner surface of the barrel I by thecup-shaped brace members 4 and spindle bear- 66 ing members 5. Themembers into the inner tube 3 so as to 2 and 3 against the inner surfaceof the Pasteboard outer rbarrel I. As will be observed, the structurejust described is generally similar to that disclosed in myapplications, Serial Nos. 411,001 and 411,002 nled September 16, 1941,and the present invention constitutes in certain aspects an improvementthereon. The cup-shaped members 4 have central openings 6 to permitpassage of a spindle and these openings are preferably of suicientlylarge diameter as to not engage the spindle. Each bearingl member 5comprises a cylindrical skirt or longitudinal flange 'I which ts withinthe inner tube -3 and is contracted at 8 to form a tubular bearingadapted to receive and engage a spindle.

The parts thus far described are shown in assembled condition in Figure1 and the assembly is completed by adding to the sub-assembly thereshown the drive end 9 and winding end member Ill. The drive end member 3comprises a generally cup-shaped or ferrule shaped sheet metal structurehaving a cylindrical ange wall II and being formed to seat upon a whorland engage the lugs of the same. For this purpose a key-shaped 4 and 5are driven opening is provided in the bottom of the member 9 and thisextends upwardly into the ange Wall II as shown in Figures 1 and 7. Theycentral portion of the opening is preferably enlarged sufliciently sothat it does not engage the spindle. The edges of the opening areformedwith anges I2 which are turned axially inward, and with side fianges I3and I4, which are turned transversely inward. These flanges serve asbraring surfaces for engaging the whorl and also to strengthen andfinish oil the edges of the opening. The outer paste'board barrel I isnotched as at I5 (Figure 1) to accommodate the flanges I3, I4, so thatthe member 9 maybe driven onto the drive end of the winding tube. Aswill be seen from Figures l, 2 and 3, the reinforcement tubes 2 and 3are spaced from the drive end of the barrel I by a distancesubstantially equal to the depth of the slot of the drive end member 9,so that the member 9' can seat against the end of the tube I and theflanges I4 be pressed down substantially ush against the bottoms of thenotches I5. The drive end assembly is completed -by rolling the upperedge I6 of the flange wall II into the barrel I so as to hold the member9 securely thereon and to provide a joint which will not trap the threadorber to be wound upon the tube. A bearing member 5 is preferablylocated adjacent this uppery edge I6 expand the tubes Y so as to back up-the barrel I and tubes 2 and, 3 and thus provide a solid construction.

The upper ends of the tubes 2 and 3 preferably stop short of the upperend of the barrel I and the top assembly may be completed by insertingthe winding end member or end cap I and turning over and rolling in theflange I1 thereof as indicated in Figures 1, 2 and 3. The advantages ofthis construction, which is made possible by eliminating any spindlebearing function of the winding end member, are apparent. Winding endmember In comprises a cylindrical portion Il which engages thepasteboard tube I and a further cylindrical portion I9 formed 'with nibsor projections 20 and which may receive an identification disk to beheld down by the nibs. Member I0 preferably has an opening 2| to providefor access to the interior of the winding tube at the upper end whennecessary, and leaving an annular flange for supporting theidentification disk below the projections 20.

It is desirable to employ angeless winding tubes with spindles designedalso for flanged tubes. In the case of a tube having a lower flange thethread or liber will be wound thereon so as to form a mass which extendsout along the flange at its lower end but tapers toward the flangelessupper end. However.' when the fiber or thread is wound upon a flangelesstube, it must be wound with a taper at both ends, so that it isdesirable to make the tube somewhat longer than a anged tube, and alsoto wind the thread or fiber as close to the lower end as possible. Forthis reason the upper bearing member 5 should be positioned within thetube at a low enough point to engage a spindle which will normallyterminate considerably short of the upper end of the winding tube. Thispermits upward extension of the winding tube to the desired amount. Atthe lower end, the skirt I I need extend above the flange I4 orlug-engaging slot only sufficiently to furnish a secure fastening. Inthis way the maximum depth of winding 'upon the tube is provided for.

As will be noted the drive end member 9 seats longitudinally againstlthe pasteboard barrel I and is positioned transversely with referencethereto. Inasmuch as this member does not engage the spindle but merelyseats upon the whorl and engages its lugs, a sufilciently accuratepositioning of the member is obtained. It will be noted that, while apasteboard tube is relatively unsatisfactory as a support for holding adrive form a rounded nose or bearing surface.

The constructions illustrated are angeless pirns or winding tubesintended to be supported and driven at one end and to be left free atthe other. Certain features of the invention are, however, applicablealso to winding tubes which are driven or supported at both ends andalso to pirns having a single flange at the drive end.

What is claimedis: A

1. In a flangeless textile winding tube and in combination, a pasteboardouter-barrel, a tubular reinforcement within said barrel, a spindlebearing within said reinforcement, and a ferruleshaped drive end membercomprising a bottom seating against the end-of the said barrel and aflange wall tting ,over the end of said barrel and pressed into the sameopposite said reinforcement member to fasten the drive end member to thebarrel, the said drive end member having a drive slot formed therein.

2. In a flangeless textile winding tube and in combination, a pasteboardbarrel having notches y at its drive end to accommodate 'the lugs of awhorl, a tubular reinforcement within said barrel and terminating shortof said notches, and a ferrule-shaped drive end member comprising abottom seating against the end of said barrel and a flange wall fittingvover the end of said barrel and pressed into the same opposite saidreinforcement to fasten the drive end member to the barrel, the saiddrive end member having a drive slot formed in the bottom and flangewall thereof in alignment with the said notches.

3. A winding tube according to claim 2 in which the material of the saiddrive end member is formed into inwardly extending flanges surroundingsaid drive slot.

4. A winding tube according to claim 2, com prising also a spindlebearing with said reinforcement.

5. A winding tube according to claim 2, comprising also a spindlebearing within said reinforcement and in which the said drive slotincludes an enlarged central portion of greater diameter than saidspindle bearing to provide clearance around a spindle engaging saidbearl ing.

6. In a pim, a tubular pasteboard barrel, a tubular reinforcement withinsaid barrel, a drive end member for said barrel, spindle bearings withinsaid reinforcement,` the said barrel extending beyond said reinforcementat its winding end, and a winding end cap attached to said barrellbeyond said reinforcement.

'7. A pirn according to claim 6, in which thel said end cap comprises acylindrical portion iltting within the said barrel, an annular flangebelow said cylindrical portion, and inward projections above said angefor holding an identiii-

